Mixing-valve.



J. SCHULTZ.

MIXING VALVE.

APPLIOATION FILED JUNE e, 1913.

1,1 03,439. Patented July '14, 1914.

2 SHEETS-SHEET l.

11 15 [Y V.. ,l 'im WITNEEE INVENTUR MmQf/U. ,W6/aq wjfw hx ff MA ATTnHNErL-n.

JOHN sonULT'z, or Borrero, Naw YORK.

'MIXING-VALVE.

incense.

Specification of Letters Patent.

Patented July 14., 1914.

Application led June 6, 1913. Serial No. 772,124.

To all whom it may concern v Be it known that I, JoHN SCHULTZ, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Mixing-Valves, of'which the following is a specification.

rIhis invention'relates to the general class of valves capable of delivering either hot or cold water, and more particularly to a valve of this kind desirable in industrial plants where water is heated by high pressure steam, such as slaughter houses. Ordinarily the water is heated by admitting cold water and steam into the same outlet pipe, but this causes an annoying vibration or chatter yof the pipes and valves which also produces leaks and breakage of the valve heads or disks.

One of the objects of my invention is the production of a tight and reliable valve ofv simple construction which overcomes such vibration and its injurious consequences.

A further object is the provision of a convenient valve that will deliver cold water, hot water or steam as desired.

In the accompanying drawings: Figure 1 is a side elevation of the valve. Fig. 2 is a vertical section thereof, adjusted to deliver cold water. Fig. 3 is a horizontal section on line 3 3, Fig. 2. Fig. l is a sectional top turns in a plan view of the valve head. Fig. 5 is a vertical section of the valve adjusted to deliver hot water. Fig. 6 is a horizontal section on line 6 6, Fig. 5. Fig. 7 is a vertical section of the valve adjusted to deliver steam only.`

Fig. 8 is a horizontal section on line 8-8, Fig. 7. j j

Similar characters of reference indicate corresponding parts throughout the several views. n

The case of the valve preferably cornprises a cylindrical low'er section 1 and a conical upper section 2 united by a screw threaded joint.

3 indicates the rotary valve disk or head preferably having its face tapered downwardly in the form of an inverted cone and bearing against a corresponding seat 4 in the lower portion of the case. The spindle of the valve extends through a stufling gland or box 5 in the top ofthe case and terminates in a hand wheel 6 orl other suitable handle for turning it. vAt its lower end the valve may be provided with an axial stem 7 which bearing formed by an outlet or discharge connection 8 arranged centrally-in the bottom of the case.

vThe top of the valve is separated from the wall ofthe upper section 2 by anintervening cold water chamber 9 having an inlet 10.

The case is providedk at one side with a steam inlet or connection 11 having an inwardly extending port 12which terminates at the valve seat t. At another side, preferably diametrically opposite thevsteam inlet, the case has an enlargement 13 containing a double-ended or substantially U-shaped port 14C both endsof which terminate at the valve seat 4, as shown in Figs. 3, 6 and 8.

The valve is provided with an injecting and mixing port 15 extending from one side f of its face to the other and adapted to register at its ends with the steaminlet port 12 and one end or branch of the U-shaped port 14;, as shown in Figs. 5 and 6. The valve also has one or more main cold water passages 16 which connect the water inlet chamber9 with the inlet side of the injecting port 15; a supplemental cold water inlet port 17, extending from4 the top tothe face of the valve and shaped port, as shown in Figs. 2 and 3, and an outlet port 18, extending upwardly through the lower valve stem 7 into the body yof the valve'` 'and having a lateral branch 19 extending tothe face of the valve and adapted to register with the steam inlet port 12,` as shown in Figs. 7 and 8, or with one or the otherend of said U- shaped port, as shown byr full lines in Fig.

i adapted to register with one end of said :U-

3 and by dotted lines in Fig. 6. Preferably port 18 and thence downwardly to the oppop site side of said face.

As shown in Fig.`1, a pointer or indicator 20 movable with the valve coperates ywith appropriate marksvor designations on the outer side of the case corresponding to the Y, j several positions of the valve, such as Off;

I-Iot; Off cCold and Steam(the first and last not shown). In the preferred construction illustrated in the drawings, this pointer extends downwardly from the hand wheel 6.

In the use of the valve, when the same is to deliver cold water only, it is 'turned to bring the pointer opposite the corresponding indication. In this adjustment of the valve, which is shown in Figs. 2 and 3, the incomfrom the latter through the outlet vport v18- and the discharge connection 8 of the valve case, communication between the steam 'in" let 11 and injecting port 15 and the discharge Yconnection being lcut off.

When it is desired to deliver steam only., the valve is turned to the position shown 4in Figs- 7 and A8, whereupon steam passes from the inlet 1l directly through the ,port 12, branch 19 and outlet port 18, into the discharge connection, all communication be` tweenthe latter andthe other ,ports being' v cut oii. l

To deliver hot water, the valve is turned .to bring the pointer opposite the icorreg spending indication. In this adjustment ofg the valve, which is shown in-'Figs A5 and l'6, i steam passes through te yport 12, injecting; port 15, U-shaped port 14, branch 119, -outletf port 18 andthe discharge connection, producing an injectingaction iby which the cold water. in the inlet chamber 9 `:is drawn' through the passages 16 into said :injectingy port, thus .connningling the water with the ysteam and highly heating it, In order to; feiiect a .better mixtureof .the water fand?y steam, .a plurality ofisuch water inlet .pas-f vsages 16are preferably employed, as shown; in Figs. V4 and 5 whereby the water is; broken up into numerous small streams By this injecting action of the valve, the dis-L tion of thel valve and the p ipes .connectedl `to the .ordinary valves therewith is eifeetually prevented, avoidingik the leakage incident heretofore in use.

The .valve is very/convenient and is especially serviceablefor slaughtering houses After filling `:a tank `:or .boiler with hot wathe Steam indication, can keep the water at the required temperature, vand if it should become teo hot he canreadily reduce the temperature byl turning the valve .to the Coldf indicatioin,

"Thedouble ended port 14 is an important lfeature ot -the valve, as it forms a double seal when the valve is :closed or wholly turnedoii. When Ain this position, the steam ,or water inorder to escape into the .discharge connection f8 must ypass from a port in the valve head Iinto one end rofsaid port A14* :and ,out of its other end yback 'intojthe valve ,-liead, thus providing atight and ,reliable duplexv seal between the valve .Case

. l and the valve hea d. v

kvalve,y this construction, vthe valve isi ing a valve-seat, an outlet, a plurality of inlets for different fluids .and a ydouble-ended port beginning and terminating at saidl valve seat, and a valve-head arranged in said' seat and having a port arranged to connect one of said inlets with one end 'of l said double-ended port and .an outlet-port arranged t0 connect with the otherend of said l:double-ended port, said {double-,ended port being .closed except ,at its ends. i

mixing valve, :comprising a-case having a valve-seat, an' outlet, a :plural-ity' of llets for diiierent fluids and a double-ended Vport beginning and terminating at said valve seat, and a valve-head arranged in said port arranged with one end" seat and having .an injectingy to connect one of said inlets ofsaid double-fended-port, a passage connecting the other inlet v.of the valve -Icase with said injecting port, and an voutlet port arranged to connect with said double-ended port, said ,doubleended port being closed except at its ends.

3. .A mixing valve ,comprising a case having a valve seat, an outlet, a cold-'water inthe vother end `of let, .a steam inlet, and a double-ended ,pont

beginning and ending at said valveseat, and Ia valve Ihead arranged in said seat and having ,an injecting port arranged .to Vconnect said ,steam inlet with `oneend `lof said doubleended port, a passage .connecting the icold water inlet with :said inject-ing port, Van out- A n Alet port arranged to register with either ,end w-ter, the oerator by turning the pointer to l of said double-ended port, and a .cold water port extending from the back to the face .of the valve-head and arranged to register "f" with one end of Tsaid .double-.ended port, said doble-ended port being closed except at its en s.

4. A mixing valve, comprising a `case hav- `let, a steam inlet and a double-ended port beginning and ending at 4said1valve-seat,and a valve head Aarranged in Ysaid seat and hav ing an axial outlet port `extending inwardly from the iront side ranged to register with said steamilllet or said double-ended port, an injecting port of inverted V-form extending around ,the inner end of said outlet port ,and arranged toncon- {ing a Valve-seat, an outlet, ,a cold water ini of the valve head and Yarnectsaid steam inlet with :one end of lsaid i doubleended port, a passage connectingsaid ,cold water inlet with said injecting port, and ,a -cold water port arranged to .connect said .cold water inlet with one .end of said doublel ended port..

5. A mixing valve, ycomp rising a valvecase having a Valve-seat, an outlet, a Waterthe valve-head and said steam inlet being 10 inlet chamber and a steam inlet terminating of small area relative` to the back of the at said valve-seat, and a valve-head arvalve-head.

ranged in said seat and having an injecting Witness my hand this 4th day of June,

' port arranged to connect said steam inlet 1913.

with the outlet of the valve case and a plu- JOHN SCHULTZ. rality of passages connecting the Water inlet Witnesses:

chamber With said injecting port, said Water C. F. GEYER,

inlet chamber being located at the back of E. M. GRAHAM.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of 19a/cents` Washington, D. C. 

